Charles f



(NoModeL) C. P. SPENCER.

Drop Light Fixture.

No. 240,472. Pate nt'ed April 19,1881.

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NJFIERS, PHOTO-LITHOGRAPHER, WASHINGTON D C UNITED STATES PATENT OFFICE.

CHARLES F. SPENCER, OF ROCHESTER, NEW YORK, ASSIGNOR OF ONE-HALF TO HOWARD A. BARROWS, OF SAME PLACE.

DROP-LIGHT FIXTURE.

SPECIFICATION forming part of Letters Patent No. 240,472, dated April 19, 1881. Application filed January 19, 1881. (No model.)

To all whom it may concern:

Be it known that I, CHARLES F. SPENCER, of Rochester, Monroe county, New York, have invented a certain new and useful Improvementin Drop-Light Fixtures; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being bad to the accompanying drawings, in which Figure 1 is an elevation of a drop-1i gh t, showing my improvement. Figs. 2, 3, 4, 5, and 6 are detail views. Y My improvement relates to drop-light fixtures for lamps.

The invention consists in the construction I 5 and arrangement of pal ts hereinafter more fully described.

In the drawings, A represents the. hanger, which is suspended from the ceiling in the, usual manner. It may be made of any desired material and form, but preferably of cast-iron bronzed, and of the flanged form shown in the cross-section, Fig. 4. Near the bottom is formed a slot or opening, a, through which pass the cross-arms B B,which support the lamps C C 2 at their outer ends. The arms are also preferably flanged like the hanger, the flanges standing outward or horizontally. Through the slot of the hanger passes a pin, 7), over which run slots 0 0, formed in :the arms. At

0 the bottom'of the slot are two sharp edges, cl 01, each occupying one-half the width of the slot, and standing in opposite directions. On the under side of the arms are formed serrations or notches ff, the square shoulders standing downward. The two arms rest side by side in the slot (0. The notches in the arms catch intothe sharp edges, and the weight of the arms and the lamps attached thereto produce a cramping action, which causes the arms to retain their place at whatever adjustment they 40 may be. To adjust the lamps higher or lower the outer ends of the arms are slightly raised, which frees the notches from the sharp edges, and the arms can then he slid up and down upon the pin without trouble.

- When the fixture is adjusted to position the top of the arm B bears against the upper edge of the slot a, and the bottom bears against the sharp edge 61.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

I. In a drop-light fixture, the combination, with the hanger A, provided with the slot at, and with the cross-arms B B, resting in the slot, of the pin b, passing through the slot, and the slots 0 0, formed in the arms and resting over the pin, whereby when the outer ends of the arms are raised said arms can be slid up or down on the pin without coming in con-' tact with the top and bottom of the opening.

2. In a drop-light fixture, the combination, with the hanger A and cross-arms B B, of the reverse sharp edges d d, formed at the bottom of the opening or slot a, and the serrations or notches ff, formed on the under side of the arms, for engaging with the said sharp edges.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

CHAS. F. SPENCER.

Witnesses:

R. F. Oseoon, J AOOB SPAHN. 

